Abstract :
Electric power companies have grown to such a size in the United States that there are now eighteen whose annual output of energy exceeds one billion kilowatthours annually. At the head of the list is the Buffalo, Niagara and Eastern Power Corporation, whose output in 1926 was 4,464,000,000 kw-hrs. This immense volume of power was generated principally by the falling water of Niagara Falls. The Commonwealth Edison Co. of Chicago is second and the Edison United and allied companies of New York City third. The Southern California Edison Co. is fourth and the Pacific Gas & Electric Co. fifth. There are no less than 126 systems in the United States, each of which is generating more than 100 million kilowatthours a year.